Ian's MTA has a buggy callback system that tries to use fake bounces
to guess whether a sending address existed. I thought these had been
stamped out due to both the fact that they mostly attack innocent
bystanders, and the fact that they don't work, but I guess not yet.
R's,
John
<iane(_at_)sussex(_dot_)ac(_dot_)uk>:
139.184.14.92 does not like recipient.
Remote host said: 550-5.1.7 Verification failed for <johnl(_at_)iecc(_dot_)com>
550-5.1.7 Called: 64.57.183.56
550-5.1.7 Sent: RCPT TO:<johnl(_at_)iecc(_dot_)com>
550-5.1.7 Response: 553 Not our message (5.7.1)
550-5.1.7 sender verification failed for johnl(_at_)iecc(_dot_)com
550-5.1.7 see <http://www.sussex.ac.uk/its/helpdesk/faq.php?faqid=1101>
550 5.1.7 the mail server for iecc.com denied the existence of
johnl(_at_)iecc(_dot_)com.
Giving up on
139(_dot_)184(_dot_)14(_dot_)92(_dot_)ietf-dkim(_at_)mipassoc(_dot_)org>
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